feat: add CLAUDE.md for development guidance and update .gitignore to include .claude directory; refactor AIChatPanel and AppShell components for improved context handling; simplify layout in ProjectDetail, NoteDetailPage, TasksPage, and TimelinePage components

src/renderer/components/ai/AIChatPanel.tsx

@@ -4,7 +4,6 @@ import ReactMarkdown from 'react-markdown';
 import remarkGfm from 'remark-gfm';
 import { trpc } from '@/lib/trpc';
 import { useAIChat, type ChatContext } from '@/hooks/useAIChat';
-import { Card, CardContent } from '@/components/ui/card';
 import { Button } from '@/components/ui/button';
 import { Badge } from '@/components/ui/badge';
 import { Skeleton } from '@/components/ui/skeleton';
@@ -19,19 +18,11 @@ const SUGGESTION_CHIPS = [
 
 interface AIChatPanelProps {
   onOpenSettings?: () => void;
-  contextType: 'global' | 'project';
-  projectId?: string;
-  projectName?: string;
-  curtainOpen: boolean;
   isHomePage?: boolean;
 }
 
 export function AIChatPanel({
   onOpenSettings,
-  contextType,
-  projectId,
-  projectName,
-  curtainOpen,
   isHomePage,
 }: AIChatPanelProps) {
   const hasTokenQuery = trpc.ai.hasToken.useQuery();
@@ -41,11 +32,8 @@ export function AIChatPanel({
   const dueTodayQuery = trpc.tasks.dueToday.useQuery(undefined, { enabled: !!isHomePage });
 
   const chatContext = useMemo<ChatContext>(
-    () => ({
-      type: contextType,
-      ...(contextType === 'project' && projectId ? { projectId } : {}),
-    }),
-    [contextType, projectId],
+    () => ({ type: 'global' as const }),
+    [],
   );
   const {
     messages,
@@ -71,15 +59,6 @@ export function AIChatPanel({
     if (el) el.scrollTo({ top: el.scrollHeight });
   }, []);
 
-  // Reset input when curtain closes; scroll to bottom when it reopens
-  useEffect(() => {
-    if (!curtainOpen) {
-      setInput('');
-    } else {
-      setTimeout(scrollToBottom, 50);
-    }
-  }, [curtainOpen, scrollToBottom]);
-
   // Auto-scroll when messages change or streaming content updates
   useEffect(() => {
     scrollToBottom();
@@ -130,60 +109,15 @@ export function AIChatPanel({
     }
   };
 
-  // Smart wheel handler: only stop propagation when there's content to scroll through
-  const handleWheel = useCallback((e: React.WheelEvent) => {
-    const el = messagesContainerRef.current;
-    if (!el) return;
-    const atBottom = el.scrollHeight - el.scrollTop - el.clientHeight < 2;
-    const atTop = el.scrollTop < 2;
-    // Let event propagate to AppShell when at boundaries
-    if ((e.deltaY > 0 && atBottom) || (e.deltaY < 0 && atTop)) return;
-    e.stopPropagation();
-  }, []);
-
-  // No token configured — show settings prompt
-  if (hasTokenQuery.data === false && !isHomePage) {
-    return (
-      <div className="absolute inset-0 z-0 flex flex-col items-center justify-center bg-background">
-        <Card className="max-w-sm">
-          <CardContent className="flex flex-col items-center gap-4 pt-6">
-            <KeyRound size={32} className="text-muted-foreground" />
-            <div className="text-center space-y-1">
-              <p className="text-sm font-medium">AI provider not configured</p>
-              <p className="text-xs text-muted-foreground">
-                Connect your GitHub Copilot token to enable AI-powered features
-                like chat, summaries, and suggestions.
-              </p>
-            </div>
-            <Button variant="outline" size="sm" onClick={onOpenSettings}>
-              Open Settings
-            </Button>
-          </CardContent>
-        </Card>
-      </div>
-    );
-  }
 
   const hasMessages = messages.length > 0 || isStreaming;
 
-  const contextLabel =
-    contextType === 'project' && projectName
-      ? `Chatting about: ${projectName}`
-      : 'Global workspace';
-
   // Derived values for home page
   const dueCount = dueTodayQuery.data?.length ?? 0;
   const userName = userNameQuery.data ?? 'there';
 
   return (
     <div className="absolute inset-0 z-0 flex flex-col bg-background">
-      {/* Context header (non-home) */}
-      {!isHomePage && (
-        <div className="flex items-center gap-2 px-6 pt-4 pb-2">
-          <Badge variant="outline">{contextLabel}</Badge>
-        </div>
-      )}
-
       {/* Scrollable messages area */}
       <ScrollArea
         className="flex-1 min-h-0"
@@ -193,7 +127,6 @@ export function AIChatPanel({
             ? '[&>div]:!flex [&>div]:!flex-col [&>div]:!min-h-full [&>div]:!justify-center'
             : '[&>div]:!flex [&>div]:!flex-col [&>div]:!min-h-full [&>div]:!justify-end'
         }
-        onWheel={handleWheel}
       >
         {/* Home page initial state: greeting + brief */}
         {isHomePage && !hasMessages && (
@@ -246,7 +179,6 @@ export function AIChatPanel({
                   onInputChange={setInput}
                   onKeyDown={handleKeyDown}
                   onSend={handleSend}
-                  isHomePage={isHomePage}
                 />
                 <div className="flex flex-wrap items-center justify-center gap-2 mt-4">
                   {SUGGESTION_CHIPS.map((chip) => (
@@ -336,79 +268,19 @@ export function AIChatPanel({
         )}
 
         {/* Non-home messages */}
-        {!isHomePage && hasMessages && (
-          <div className="mx-auto w-full max-w-[1088px] px-6 pt-4 pb-32">
-            <div className="flex flex-col gap-4">
-              {messages.map((msg) => {
-                if (msg.role === 'user') {
-                  return (
-                    <div key={msg.id} className="flex justify-end">
-                      <div className="ml-auto max-w-[75%] rounded-2xl bg-muted px-4 py-2">
-                        <ChatMarkdown content={msg.content} />
-                      </div>
-                    </div>
-                  );
-                }
-
-                if (msg.error) {
-                  return (
-                    <div key={msg.id} className="mr-auto max-w-[75%]">
-                      <p className="text-sm text-destructive whitespace-pre-wrap">
-                        {msg.content}
-                      </p>
-                    </div>
-                  );
-                }
-
-                return (
-                  <div key={msg.id} className="mr-auto max-w-[75%]">
-                    <div className="flex items-center gap-1.5 mb-1">
-                      <Sparkles size={16} className="text-foreground" />
-                      <span className="text-sm font-semibold">Adiuva</span>
-                    </div>
-                    <div className="pl-[22px]">
-                      <ChatMarkdown content={msg.content} />
-                    </div>
-                  </div>
-                );
-              })}
-
-              {/* Streaming AI response */}
-              {isStreaming && (
-                <div className="mr-auto max-w-[75%]">
-                  <div className="flex items-center gap-1.5 mb-1">
-                    <Sparkles size={16} className="text-foreground" />
-                    <span className="text-sm font-semibold">Adiuva</span>
-                  </div>
-                  {streamingContent ? (
-                    <div className="pl-[22px]">
-                      <ChatMarkdown content={streamingContent} />
-                    </div>
-                  ) : (
-                    <div className="space-y-2 pl-[22px]">
-                      <Skeleton className="h-4 w-48" />
-                      <Skeleton className="h-4 w-32" />
-                    </div>
-                  )}
-                </div>
-              )}
-            </div>
-          </div>
-        )}
       </ScrollArea>
 
-      {/* Fixed input — pinned to the bottom (hidden on home initial state) */}
-      {!(isHomePage && !hasMessages) && (
+      {/* Fixed input — pinned to the bottom (hidden on initial state) */}
+      {hasMessages && (
         <div className="absolute bottom-0 left-0 right-0 z-10 px-6 pb-5 pt-16 pointer-events-none">
           <div className="absolute inset-x-0 top-0 h-full bg-gradient-to-b from-transparent via-background/60 to-background/90" />
-          <div className={`relative pointer-events-auto mx-auto ${isHomePage ? 'max-w-3xl' : 'max-w-[1088px]'}`}>
+          <div className="relative pointer-events-auto mx-auto max-w-3xl">
             <ChatInput
               input={input}
               isStreaming={isStreaming || briefLoading}
               onInputChange={setInput}
               onKeyDown={handleKeyDown}
               onSend={handleSend}
-              isHomePage={isHomePage}
             />
           </div>
         </div>
@@ -425,7 +297,6 @@ interface ChatInputProps {
   onInputChange: (value: string) => void;
   onKeyDown: (e: React.KeyboardEvent<HTMLTextAreaElement>) => void;
   onSend: () => void;
-  isHomePage?: boolean;
 }
 
 function ChatInput({

src/renderer/components/layout/AppShell.tsx

@@ -1,14 +1,12 @@
-import { useState, useEffect, useRef, useCallback } from 'react';
+import { useState } from 'react';
 import { Link, useRouterState } from '@tanstack/react-router';
-import { LayoutGroup, motion, useMotionValue, useSpring } from 'framer-motion';
+import { LayoutGroup } from 'framer-motion';
 import {
   House,
   ChartGantt,
   ClipboardCheck,
   FolderKanban,
   PanelLeft,
-  ChevronUp,
-  ChevronDown,
   Settings,
   Sparkles,
   Check,
@@ -71,20 +69,6 @@ interface AppShellProps {
   children: React.ReactNode;
 }
 
-/** Walk up the DOM to find the nearest scrollable ancestor. */
-function findScrollableAncestor(el: Element | null): Element | null {
-  if (!el || el === document.body) return null;
-  const style = window.getComputedStyle(el);
-  const overflowY = style.overflowY;
-  if (
-    (overflowY === 'auto' || overflowY === 'scroll') &&
-    el.scrollHeight > el.clientHeight
-  ) {
-    return el;
-  }
-  return findScrollableAncestor(el.parentElement);
-}
-
 export function AppShell({ children }: AppShellProps) {
   return (
     <FloatingChatProvider>
@@ -132,138 +116,23 @@ function AppShellInner({ children }: AppShellProps) {
 
   const isHomePage = currentPath === '/';
 
-  // Curtain is disabled on home page and on /projects without a selected project
-  const searchObj = routerState.location.search as Record<string, unknown>;
-  const projectId = typeof searchObj['projectId'] === 'string' ? searchObj['projectId'] : undefined;
-  const curtainEnabled =
-    currentPath !== '/' &&
-    !(currentPath === '/projects' && !projectId);
-  const curtainEnabledRef = useRef(curtainEnabled);
-  curtainEnabledRef.current = curtainEnabled;
-
-  // Derive AI chat context from current route
-  const isProjectView = currentPath === '/projects' && !!projectId;
-  const contextType = isProjectView ? 'project' as const : 'global' as const;
-  const projectQuery = trpc.projects.get.useQuery(
-    { id: projectId ?? '' },
-    { enabled: !!projectId },
-  );
-
-  // --- Curtain animation state ---
-  const [curtainOpen, setCurtainOpen] = useState(false);
-  const curtainOpenRef = useRef(false);
-
-  const y = useMotionValue(0);
-  const springY = useSpring(y, { stiffness: 300, damping: 30 });
-
-  const openCurtain = useCallback(() => {
-    curtainOpenRef.current = true;
-    setCurtainOpen(true);
-    y.set(window.innerHeight);
-  }, [y]);
-
-  const closeCurtain = useCallback(() => {
-    curtainOpenRef.current = false;
-    setCurtainOpen(false);
-    y.set(0);
-  }, [y]);
-
-  const toggleCurtain = useCallback(() => {
-    if (curtainOpenRef.current) closeCurtain();
-    else openCurtain();
-  }, [openCurtain, closeCurtain]);
-
-  // Keep curtain position in sync with window height on resize
-  useEffect(() => {
-    const handleResize = () => {
-      if (curtainOpenRef.current) {
-        y.set(window.innerHeight);
-      }
-    };
-    window.addEventListener('resize', handleResize);
-    return () => window.removeEventListener('resize', handleResize);
-  }, [y]);
-
-  // Keyboard shortcut: Cmd/Ctrl+K
-  useEffect(() => {
-    const handleKeyDown = (e: KeyboardEvent) => {
-      if (e.key === 'k' && (e.metaKey || e.ctrlKey)) {
-        e.preventDefault();
-        if (!curtainEnabledRef.current) return;
-        toggleCurtain();
-      }
-    };
-    document.addEventListener('keydown', handleKeyDown);
-    return () => document.removeEventListener('keydown', handleKeyDown);
-  }, [toggleCurtain]);
-
-  // Wheel event: overscroll detection
-  useEffect(() => {
-    const handleWheel = (e: WheelEvent) => {
-      if (!curtainOpenRef.current) {
-        if (!curtainEnabledRef.current) return;
-        // Opening: overscroll UP (deltaY < 0) when content is at top
-        if (e.deltaY < 0) {
-          const scrollable = findScrollableAncestor(e.target as Element);
-          const atTop = !scrollable || scrollable.scrollTop === 0;
-          if (atTop) openCurtain();
-        }
-      } else {
-        // Closing: scroll DOWN (deltaY > 0) while curtain is open
-        if (e.deltaY > 0) {
-          closeCurtain();
-        }
-      }
-    };
-
-    document.addEventListener('wheel', handleWheel, { passive: true });
-    return () => document.removeEventListener('wheel', handleWheel);
-  }, [openCurtain, closeCurtain]);
-
   return (
     <LayoutGroup>
     <SidebarProvider open={open} onOpenChange={handleOpenChange}>
       <AppSidebar
         currentPath={currentPath}
         setTokenDialogOpen={setTokenDialogOpen}
-        onNavClick={closeCurtain}
       />
-      <SidebarInset className="overflow-hidden">
-        {/* AI Chat layer: always mounted behind the content panel */}
-        <AIChatPanel
-          onOpenSettings={() => setTokenDialogOpen(true)}
-          contextType={contextType}
-          projectId={projectId}
-          projectName={projectQuery.data?.name}
-          curtainOpen={isHomePage || curtainOpen}
-          isHomePage={isHomePage}
-        />
-
-        {/* Content panel: slides down to reveal chat (hidden on home — AIChatPanel IS the home page) */}
-        {!isHomePage && (
-          <motion.div
-            style={{ y: springY }}
-            className="absolute inset-0 z-10 flex flex-col bg-background"
-          >
+      <SidebarInset>
+        {isHomePage ? (
+          <AIChatPanel
+            onOpenSettings={() => setTokenDialogOpen(true)}
+            isHomePage
+          />
+        ) : (
+          <div className="relative flex flex-col h-full">
             {children}
-
-            {/* Right-edge vertical affordance (non-interactive) */}
-            <div className={`absolute right-0 top-0 flex items-end justify-center pt-8 pointer-events-none select-none${!curtainEnabled ? ' hidden' : ''}`}>
-              <div className="flex flex-col items-center gap-1.5 pr-2">
-                {curtainOpen ? (
-                  <ChevronDown size={10} />
-                ) : (
-                  <ChevronUp size={10} />
-                )}
-                <span
-                  className="text-[9px] tracking-widest uppercase font-medium"
-                  style={{ writingMode: 'vertical-rl', transform: 'rotate(180deg)' }}
-                >
-                  {curtainOpen ? 'back to app' : 'scrolling up for Adiuva'}
-                </span>
-              </div>
-            </div>
-          </motion.div>
+          </div>
         )}
       </SidebarInset>
     </SidebarProvider>
@@ -321,10 +190,9 @@ function AppShellInner({ children }: AppShellProps) {
 interface AppSidebarProps {
   currentPath: string;
   setTokenDialogOpen: (open: boolean) => void;
-  onNavClick: () => void;
 }
 
-function AppSidebar({ currentPath, setTokenDialogOpen, onNavClick }: AppSidebarProps) {
+function AppSidebar({ currentPath, setTokenDialogOpen }: AppSidebarProps) {
   const { toggleSidebar } = useSidebar();
   const { theme, setTheme } = useTheme();
 
@@ -377,7 +245,7 @@ function AppSidebar({ currentPath, setTokenDialogOpen, onNavClick }: AppSidebarP
                       isActive={isActive}
                       tooltip={label}
                     >
-                      <Link to={to} onClick={onNavClick}>
+                      <Link to={to}>
                         <Icon />
                         <span>{label}</span>
                       </Link>

src/renderer/components/projects/ProjectDetail.tsx

@@ -161,7 +161,7 @@ export function ProjectDetail({ projectId }: ProjectDetailProps) {
   }
 
   return (
-    <div className="p-6 pe-8 flex flex-col gap-6">
+    <div className="p-6 flex flex-col gap-6">
       {/* Breadcrumb + Project Name */}
       <div className="flex flex-col gap-1">
         {breadcrumbPath.length > 0 && (